AITENOVA, G.M.; SARTABANOV, Zh.A.; OMAROVA, B.Zh.; ZHUMAGAZIYEV, A.Kh. Stability and existence of multiperiodic solutions for second-order linear equations with a diagonal differentiation operator. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 121, n. 1, p. 23–36, 2026. DOI: 10.31489/2026m1/23-36. Disponível em: https://mts.buketov.edu.kz/mathematics-vestnik/article/view/1094. Acesso em: 4 apr. 2026.